One of our pet peeves at Android Police lately (mostly mine and Artem's) has been the lack of a proper Google Assistant directory on the web. Amazon simply has its Alexa skills searchable from its site, like you would for any product or app or book, but to see if Assistant supports a certain product you had to have a phone/tablet with Assistant enabled, browse to the slightly hidden Explore section which is accessible from the blue envelope thing on the top right of the Assistant screen, and just then you could either search or use the trending and new sections.

Amazon is throwing some developers a bone with a promotional credit on AWS for Alexa skills to help cover any incurred usage charges. Most of them use the free tier, but some do end up exceeding those limits and incur charges. Any that do can apply for a $100 promotional credit to help cover those costs.

Amazon's Alexa assistant has one major advantage over the Google Home (and other competing voice assistants) - the massive amount of third-party skills. Google has a similar developer platform for Assistant, Actions on Google, but the simple fact that Alexa has been around longer means it has a more sizable collection of abilities.